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All Journal PENA SAINS PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Mandala Pengabdian Masyarakat Kulidawa Journal of Biological Science and Education JURNAL REKAYASA KIMIA & LINGKUNGAN
Arham, Zul
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Energy Engineering Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Journal : JURNAL REKAYASA KIMIA

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Electrochemical Performance of Tellurium Oxide on TiO2/Ti Array for Photoelectrocatalytic Chemical Oxygen Demand Sensor Applications Maulidiyah, Maulidiyah; Irwan, Irwan; Indriani, Annisa; Salim, La Ode Agus; Arham, Zul; Bijang, Catherina M.; Kurniawan, Kurniawan; Nurdin, Muhammad
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i2.27784

Abstract

The experiments were carried out using Te-TiO2/Ti as working electrodes, prepared by the simple anodization technique and dip coating method, on Ti substrates (TiO2/Ti). The measurements were performed in an electrochemical cell using a three-electrode system, with Te-TiO2/Ti as the working electrode, Ag/AgCl as the reference electrode and pt as the auxiliary electrode. A flow system for determining the profile and photocurrent response of reactive orange 84 was developed using Linear Sweep Voltammetry (LSV) and Multi-Pulse Amperometry (MPA). The physicochemical properties of Te-TiO2/Ti electrodes have been studied using UVvis DRS analysis techniques and compared with un-doped TiO2/Ti electrodes. The UVvis DRS showed that the TiO2/Ti doped Te functionally decreases bandgap to 3.0 eV. The results showed that the photocurrent of reactive orange 84 was observed in the concentration range (1-5 M), with a linear response between concentration and charge.
Electroanalytical Performance of Graphene Paste Electrode Modified Al(III)-TiO2 Nanocomposites in Fipronil Solution Nurdin, Muhammad; Arham, Zul; Rahayu, Sri; Agus Salim, La Ode; Maulidiyah, Maulidiyah
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 2 (2020): Jurnal Rekayasa Kimia & Lingkungan (December, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i2.16947

Abstract

The new composite material Al(III)-TiO2 has been synthesized and applied as a modifier of graphene paste electrode for the determination of fipronil pesticide by cyclic voltammetry. The methods were to synthesis of Aluminum-Titanium dioxide (AT), preparation of graphene paste electrode with mass varied Al(III)-TiO2 (GAT) (0.05 g, 0.1 g, 0.2 g), and fipronil electroanalytic respons. Addition of Al(III)-TiO2 to the graphene paste electrode shows redox properties which are well characterized by a fast electron transfer process. Based on the results of measurements in a solution containing fipronil, it is known that fipronil is oxidized at a potential value of 0.26 V. Furthermore, the fipronil oxidation process on the GAT surface is influenced by diffusion control, this is powered by R2 value 0.91 when plotted between peak oxidation currents (Ipa) vs. root scan rate. Other results show that measurement linearity is in the range 0.01 to 0.09 g/L with a limit of detection (LOD) value of 0.0164 g/L. Moreover, GAT shows good stability in the determination of fipronil with% RSD equal to 5%.
Co-Authors ., Ismaun AA Sudharmawan, AA Agus Salim, La Ode Akila, Nur Alfhandy, Pramanda Bijang, Catherina M. Fausan, Sultan Ahmad Indriani, Annisa Irwan Irwan Ismaun, Ismaun Jumarddin La Fua, Jumarddin La Kurniawan Kurniawan Maulidiyah Maulidiyah MgB, A. Fadilah Muh. Edihar Muhammad Nurdin Nur Hikmah Nurhijayanti, Nurhijayanti Rismiati, Rismiati Salim, La Ode Agus Samrin Samrin, Samrin Saparuddin Saparuddin SRI RAHAYU Tojang, Djunarlin Usman Usman Zakir Muzakkar, Muhammad Zulkifli Zulkifli